Humans have excellent gaze detection. We know instinctively when another person is staring our way. But unless a camera is particularly conspicuous, like the creepy "human-eyeball" webcam created by ...

Amazon unveiled a new tracking system at a time when Americans are debating the value of persistent surveillance.

More than 5,000 law enforcement departments across the U.S. use interconnected Flock Safety cameras to track residents’ movements. Sandy Boyce, a 72-year-old retiree in Sedona, Arizona, first saw the ...